Essays about: "pingers"

Found 3 essays containing the word pingers.

  1. 1. Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Duncan Jones; [2023]
    Keywords : Geography; Geographical Information Systems; GIS; Habitat Modelling; Harbour Porpoise; MaxEnt; Tidal Processes; Conservation; Earth and Environmental Sciences;

    Abstract : Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall Abstract Unintentional by-catch in fishing gear is a significant cause of mortality of harbour porpoises in UK waters. Understanding the spatial distribution of harbour porpoises at fine scales and how this changes over time is essential when trying to understand where these lethal interactions might occur. READ MORE

  3. 2. Do potentially seal-safe pingers deter harbour porpoises (Phocoena phocoena) in the vicinity of gillnets and thereby reduce bycatch?

    University essay from Linköpings universitet/Biologi

    Author : Simon Björklund Aksoy; [2020]
    Keywords : Acoustic Deterrent Device; Banana pinger; Bycatch; Commercial fishery; C-POD; Dinner-bells; Future Oceans pinger; Harbour porpoise;

    Abstract : Incidental bycatch in gillnets is a substantial threat to small cetaceans. Using Acoustic Deterrent Devices, “pingers”, have successfully reduced bycatch of harbour porpoises in gillnets. READ MORE

  4. 3. Spatial och temporal förändring i närvaro av vanlig tumlare (Phocoena phocoena) vid fiske med pingers i Skälderviken och Kullaberg

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Emma Mattsson; [2017]
    Keywords : vanlig tumlare; Phocoena phocoena; fiske; pingers; C-POD; bifångst;

    Abstract : Ett av de större hoten mot vanlig tumlare (Phocoena phocoena) är bifångst i samband med fiske. På grund av detta har effekten av akustiska kapslar (pingers) på fiskenät undersökts i flera studier för att avgöra om bifångsten av tumlare kan minimeras. READ MORE